Question 1

On Mars gravity is one-third that on Earth.What would be the weight on Mars of a person who has a weight of 150 pounds (lb)on Earth?

Accepted Answer

A) 50 lb 
B) 150 lb 
C) 450 lb 
D) 300 lb 
A) 50 lb 
B) 150 lb 
C) 450 lb 
D) 300 lb A

Question 2

A person engages in basic research to discover knowledge for the sake of knowing,while a person engages in applied research usually directs that research toward a specific goal.

Accepted Answer

A) True 
 B)False  True

Question 3

The knowledge gained from basic research has rarely been applied to improving our lives.

Accepted Answer

A) True 
 B)False  False

Question 4

Green chemistry uses

Accepted Answer

A) only water as a solvent. 
B) materials and processes that are intended to prevent or reduce pollution at its source. 
C) only grocery store bought chemicals. 
D) reactions that are not heated. 
A) only water as a solvent. 
B) materials and processes that are intended to prevent or reduce pollution at its source. 
C) only grocery store bought chemicals. 
D) reactions that are not heated.

Question 5

A chemical change always involves a change in the ________ of matter.

Accepted Answer

A) state 
B) composition 
C) volume 
D) temperature 
A) state 
B) composition 
C) volume 
D) temperature

Question 6

One of the hallmarks of science is the ability to think ________.

Accepted Answer

A) often 
B) constantly 
C) critically 
D) independently 
A) often 
B) constantly 
C) critically 
D) independently

Question 7

Molasses is a by-product of the refining of sugar from sugar cane.The specific composition of molasses varies depending upon the source of the sugar cane.Which one of the following is the best classification of molasses?

Accepted Answer

A) pure substance 
B) element 
C) compound 
D) mixture 
A) pure substance 
B) element 
C) compound 
D) mixture

Question 8

The prefix deci means ________.

Accepted Answer

A) 0.001 
B) 0.1 
C) 0.01 
D) 100 
A) 0.001 
B) 0.1 
C) 0.01 
D) 100

Question 9

The physical state that retains both shape and volume is

Accepted Answer

A) solid. 
B) liquid. 
C) gas. 
D) element. 
A) solid. 
B) liquid. 
C) gas. 
D) element.

Question 10

Which of the following does NOT involve chemistry?

Accepted Answer

A) creating materials for computers 
B) glycolysis 
C) burning of a forest 
D) All of the above involve chemistry. 
A) creating materials for computers 
B) glycolysis 
C) burning of a forest 
D) All of the above involve chemistry.

Question 11

Which of these does NOT involve a chemical change?

Accepted Answer

A) Cocaine causes the release of norepinephrine from nerve cells. 
B) Red delicious apples taste sweet. 
C) Antacids often help an upset stomach. 
D) Mercury is used in barometers because it has a high density. 
A) Cocaine causes the release of norepinephrine from nerve cells. 
B) Red delicious apples taste sweet. 
C) Antacids often help an upset stomach. 
D) Mercury is used in barometers because it has a high density.

Question 12

Which of the following is a chemical property?

Accepted Answer

A) Potassium reacts with water to form potassium hydroxide. 
B) Sugar dissolves in water. 
C) Sugar is a solid at room temperature. 
D) Gasoline and water do not mix. 
A) Potassium reacts with water to form potassium hydroxide. 
B) Sugar dissolves in water. 
C) Sugar is a solid at room temperature. 
D) Gasoline and water do not mix.

Question 13

The label on a can of sparkling mineral water lists the following ingredients: carbonated water and natural lime flavor.Which one of the following best classifies the beverage?

Accepted Answer

A) mixture 
B) element 
C) compound 
D) pure substance 
A) mixture 
B) element 
C) compound 
D) pure substance

Question 14

The research work of Gertrude Elion is an example of basic research.

Accepted Answer

A) True 
 B)False

Question 15

The evaluation of societal risk includes all of the components of individual risk plus

Accepted Answer

A) the probability that an incident will occur. 
B) the degree of severity of the incident. 
C) the number of people affected by the incident. 
D) the benefit associated with the incident. 
A) the probability that an incident will occur. 
B) the degree of severity of the incident. 
C) the number of people affected by the incident. 
D) the benefit associated with the incident.

Question 16

In order for an experiment to be successful,scientists must be able to control all variables.

Accepted Answer

A) True 
 B)False

Question 17

Tangible items or pictures used by scientists to represent invisible processes are called

Accepted Answer

A) theories. 
B) models. 
C) laws. 
D) experiments. 
A) theories. 
B) models. 
C) laws. 
D) experiments.

Question 18

Pure water is an excellent substance for dissolving many other substances.Given this,the tap water that you drink is best classified as a(n)

Accepted Answer

A) pure substance. 
B) mixture. 
C) element. 
D) compound. 
A) pure substance. 
B) mixture. 
C) element. 
D) compound.

Question 19

What is green chemistry? Give an example.

Accepted Answer

Green chemistry is the design of chemica

Question 20

Green chemists reduce the risks associated with the manufacture of a product by doing all of the following EXCEPT

Accepted Answer

A) using materials that are less toxic. 
B) requiring workers to use protective equipment. 
C) using smaller amounts of materials. 
D) considering the biodegradability of chemicals used to make the product. 
A) using materials that are less toxic. 
B) requiring workers to use protective equipment. 
C) using smaller amounts of materials. 
D) considering the biodegradability of chemicals used to make the product.

Exam 1: Chemistry

On Mars gravity is one-third that on Earth.What would be the weight on Mars of a person who has a weight of 150 pounds (lb)on Earth?

A person engages in basic research to discover knowledge for the sake of knowing,while a person engages in applied research usually directs that research toward a specific goal.

The knowledge gained from basic research has rarely been applied to improving our lives.

Green chemistry uses

A chemical change always involves a change in the ________ of matter.

One of the hallmarks of science is the ability to think ________.

Molasses is a by-product of the refining of sugar from sugar cane.The specific composition of molasses varies depending upon the source of the sugar cane.Which one of the following is the best classification of molasses?

The prefix deci means ________.

The physical state that retains both shape and volume is

Which of the following does NOT involve chemistry?

Which of these does NOT involve a chemical change?

Which of the following is a chemical property?

The label on a can of sparkling mineral water lists the following ingredients: carbonated water and natural lime flavor.Which one of the following best classifies the beverage?

The research work of Gertrude Elion is an example of basic research.

The evaluation of societal risk includes all of the components of individual risk plus

In order for an experiment to be successful,scientists must be able to control all variables.

Tangible items or pictures used by scientists to represent invisible processes are called

Pure water is an excellent substance for dissolving many other substances.Given this,the tap water that you drink is best classified as a(n)

What is green chemistry? Give an example.

Green chemists reduce the risks associated with the manufacture of a product by doing all of the following EXCEPT

Atoms

Atomic Structure

Chemical Bonds

Chemical Accounting

Gases, Liquids, Solids, and Intermolecular Forces

Acids and Bases

Oxidation and Reduction

Organic Chemistry

Polymers

Nuclear Chemistry

Chemistry of the Earth

Air

Water

Energy

Biochemistry

Food

Drugs

Fitness and Health

Chemistry Down on the Farm

Household Chemicals

Poisons

Filters